Fireball’s Ultimate Hydrophobic Foam adds hydrophobic protection to your weekly maintenance wash.Having hydrophobic protection on your vehicle encourages water-borne dirt and contamination to slide away, rather than stick. Treated surfaces stay looking cleaner for longer and because dirt doesn’t bond as readily, cleaning the car is much easier!Designed to work on its own or to boost existing wax or sealant layers, Ultimate Hydrophobic Foam should be applied after the main wash process. Simply spray it on, allow to dwell for around 30 seconds, then rinse and watch the water bead away from the surface.